Fittings for Manila or wire rope blocks

In selecting blocks the governing consideration should be the load to be handled, rather than diameter or strength of the rope they will carry. In multiple-sheave blocks the load is distributed among several parts of the rope, whereas the hooks or shackles on the blocks have to carry the entire load. It is not practical to make double blocks twice as strong or triple blocks three times as strong as single blocks, since they would be too heavy and needlessly expensive for general use.


Western Block Fittings FOR MANILA OR WIRE ROPE BLOCKS

How to Order Manila ROPE Blocks only

QTY	FITTING LETTER	BLOCK SERIES	BEARING LETTER	SIZE
2	H	21	C	4"

• If blocks are not shown with type of fitting you require, simply choose letter corresponding to your fitting need and insert where "H" appears in the above example.
• Unless otherwise specified all material will be furnished in Japanned finish.
• With the exception of the 566 series all Block loads listed are resultant safe working loads.
• All Certified single blocks are proof tested to twice the resultant safe working load and marked with a safe working load equal to one half the resultant load. Double blocks are tested to twice the resultant safe working load and marked with a safe working load equal to the resultant load.
• All blocks except snatch blocks are furnished with becket. Blocks without becket on special order only.
• When blocks are used for heavy loads and fast hoisting, we strongly recommend roller or bronze bearings in the sheaves. For wire rope blocks, cast steel sheaves are recommended.